Proportional Reasoning Flashcard

Front

What is proportional reasoning?

Back

Proportional reasoning is the ability to compare ratios and understand the relationship between quantities in a proportional context.

Front

How do you calculate a percentage discount?

Back

To calculate a percentage discount, multiply the original price by the discount percentage (as a decimal) and subtract that amount from the original price.

Front

If an item costs $60 and is on sale for 15% off, how much do you pay?

Back

$51

Front

What does a map scale of 1 inch : 50 miles mean?

Back

It means that every 1 inch on the map represents 50 miles in real life.

Front

If two cities are 3.5 inches apart on a map with a scale of 1 inch : 50 miles, how far apart are they in real life?

Back

175 miles

Front

How do you find the sale price of an item after a percentage discount?

Back

Subtract the discount amount from the original price.

Front

If a shirt originally costs $40 and is on sale for 25% off, what is the sale price?

Back

$30

Front

What is the formula to calculate miles per gallon (MPG)?

Back

MPG = Total miles traveled / Total gallons of gas used.

Front

If a car travels 180 miles using 6 gallons of gas, how many miles can it travel per gallon?

Back

30 miles/gallon

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.